78628 ZIP Code, Georgetown, TX

78628 is a ZIP code in Georgetown, Texas in Williamson County. It covers 65 square miles of land, centered about 28 miles north of downtown Austin. The closest ZIP codes are 78633, 78681 and 78626. 50,822 people live here in 19,084 households, more than in 9 of every 10 Texas ZIP codes. With about 785 people per square mile it is lightly settled, and most homes are owner-occupied (76%). Median household income is $125,635, well above the Texas median of $78,476.

Quick facts

Key figures

MeasureValue
Residents50,822
Households19,084
Median household income$125,635
Income per person$60,880
Median age40.7
Homeowners75.5%
Median home value$496,600
Median rent$1,687
Bachelor's degree or higher55.0%
Average commute (minutes)29.3
Households with kids under 1834.1%
Moved in the past year14.7%
Below the poverty line7.3%
Broadband internet96.0%
Speak a non-English language at home15.4%

Household income

% of householdsValue
<$10K2.7%
$10–15K2.6%
$15–25K2.2%
$25–35K4.3%
$35–50K5.6%
$50–75K12.1%
$75–100K10.8%
$100–150K17.6%
$150–200K15.8%
$200K+26.3%

Age

% of all residentsValue
<1012.6%
10–1912.8%
20–243.6%
25–3412.3%
35–4415.1%
45–5413.8%
55–6412.6%
65–749.3%
75+7.9%

Tenure

% of housing unitsValue
Owned, with mortgage50.6%
Owned outright22.2%
Rented23.3%
Vacant3.8%

Type of building

% of housing unitsValue
Detached house78.8%
Townhome1.8%
2–4 units4.7%
5–19 units4.5%
20+ units9.9%
Mobile / other0.1%

Businesses in 78628

1,135 business establishments with 10,422 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

78628 has 31 USPS carrier routes with 27,555 residential and 929 business mailboxes. Open the EDDM route map.

Carrier routes in 78628

78628 has 31 USPS carrier routes (8 city (C), 23 rural (R)) with 27,555 residential and 929 business mailboxes. Routes range from 437 homes (R078) to 2,048 homes (C011); the median route has 879 homes. The Census counted 19,084 households in 78628 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4991
500–74910
750–99911
1,000–1,4998
1,500+1

Best routes in 78628 for…

Highest income

For bigger-ticket offers: remodeling, pools, financial planning, private schools.

  1. Route R043 — Est. median household income $199,483, 1,015 homes
  2. Route R072 — Est. median household income $197,325, 1,256 homes
  3. Route R012 — Est. median household income $183,893, 567 homes
  4. Route R004 — Est. median household income $181,521, 781 homes
  5. Route R062 — Est. median household income $176,324, 776 homes

Select these 5 routes on the route map

Often mailed by: Home services EDDM, Real estate EDDM postcards, Landscaping and lawn care mailers

Most families with kids

For tutoring, youth sports, pediatric dental, child care and family dining.

  1. Route R032 — Est. families with children under 18 73.2%, 911 homes
  2. Route R043 — Est. families with children under 18 50.6%, 1,015 homes
  3. Route R050 — Est. families with children under 18 50.6%, 970 homes
  4. Route R058 — Est. families with children under 18 45.6%, 809 homes
  5. Route R013 — Est. families with children under 18 42.7%, 822 homes

Select these 5 routes on the route map

Often mailed by: Dental practice EDDM, Healthcare and clinic mailers

Most homeowners

Owners decide on roofs, HVAC, lawns, solar and insurance; renters usually can't.

  1. Route R012 — Est. owner-occupied homes 97.9%, 567 homes
  2. Route R013 — Est. owner-occupied homes 97.4%, 822 homes
  3. Route R032 — Est. owner-occupied homes 97.3%, 911 homes
  4. Route R077 — Est. owner-occupied homes 96.1%, 1,122 homes
  5. Route R050 — Est. owner-occupied homes 94.9%, 970 homes

Select these 5 routes on the route map

Often mailed by: Roofing direct mail, HVAC postcards

Most new movers

New residents are still choosing a dentist, a gym and a lawn service.

  1. Route C007 — Est. residents who moved in the past year 29.9%, 505 homes
  2. Route C009 — Est. residents who moved in the past year 26.3%, 1,418 homes
  3. Route R004 — Est. residents who moved in the past year 22.7%, 781 homes
  4. Route R062 — Est. residents who moved in the past year 21.5%, 776 homes
  5. Route C011 — Est. residents who moved in the past year 20.3%, 2,048 homes

Select these 5 routes on the route map

Often mailed by: Restaurant EDDM menus and offers, Gym and fitness mailers

Newest homes

Newer subdivisions: landscaping, window treatments, fencing, security, home warranties.

  1. Route R078 — Est. homes built 2010 or later 94.7%, 437 homes
  2. Route R032 — Est. homes built 2010 or later 94.2%, 911 homes
  3. Route R050 — Est. homes built 2010 or later 92.3%, 970 homes
  4. Route R052 — Est. homes built 2010 or later 91.6%, 1,028 homes
  5. Route R061 — Est. homes built 2010 or later 88.0%, 1,148 homes

Select these 5 routes on the route map

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route R060 — USPS business mailboxes 159, 599 homes
  2. Route C009 — USPS business mailboxes 154, 1,418 homes
  3. Route R071 — USPS business mailboxes 130, 939 homes
  4. Route R008 — USPS business mailboxes 102, 543 homes
  5. Route R047 — USPS business mailboxes 85, 1,082 homes

Select these 5 routes on the route map

Every carrier route in 78628

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City87953$71,26449.2%27.5%5.0%
C004City9110$120,49393.7%19.2%16.1%
C005City99525$99,16569.6%30.3%9.5%
C007City5051$72,66734.5%18.1%29.9%
C009City1,418154$66,37653.0%28.6%26.3%
C010City6903$113,02180.7%19.5%7.4%
C011City2,04864$113,94556.8%31.9%20.3%
C016City1,13917$78,02253.6%23.5%17.3%
R004Rural7810$181,52194.8%26.9%22.7%
R006Rural5283$136,08587.6%26.9%11.5%
R007Rural5841$100,91271.5%35.7%11.8%
R008Rural543102$144,02792.6%24.6%9.7%
R010Rural70615$94,04860.7%17.9%10.7%
R012Rural5673$183,89397.9%34.2%7.2%
R013Rural8221$148,11997.4%42.7%8.3%
R016Rural90742$71,93652.2%29.4%15.6%
R025Rural7122$116,18594.5%32.4%17.9%
R032Rural9111$164,02897.3%73.2%6.5%
R043Rural1,0157$199,48373.9%50.6%8.0%
R047Rural1,08285$136,58270.9%28.1%17.0%
R050Rural9700$153,17694.9%50.6%15.2%
R052Rural1,0281$157,44690.7%38.8%14.5%
R058Rural8093$165,91884.1%45.6%16.3%
R060Rural599159$125,12087.3%27.9%15.2%
R061Rural1,14850$162,14994.1%37.0%16.8%
R062Rural7767$176,32491.9%27.1%21.5%
R069Rural7280$169,96988.4%42.0%13.3%
R071Rural939130$150,39980.8%39.8%17.8%
R072Rural1,2560$197,32594.7%36.9%7.4%
R077Rural1,1220$153,74596.1%42.2%15.9%
R078Rural4370$128,79482.4%32.3%16.4%

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78628 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

Areas that include 78628

Where it ranks

Mail every home in 78628

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 78628, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 78628 in?
78628 is a Georgetown, TX mailing address. By land area, 30% lies inside Georgetown, 3% lies inside Serenada and 2% lies inside Leander; the rest is outside any Census-defined city or community.
What county is 78628 in?
78628 is in Williamson County.
What is the population of 78628?
About 50,822 people (±2,290), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 40,378.
What is the median household income in 78628?
$125,635 (±$6,672), compared with $78,476 for Texas as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 78628?
31 USPS carrier routes with 27,555 residential and 929 business mailboxes (28,486 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 78628?
The closest, measured center to center: 78633 (5.1 mi, Georgetown), 78681 (9.2 mi, Round Rock), 78626 (9.6 mi, Georgetown), 78642 (9.8 mi, Liberty Hill), 78674 (10.7 mi, Weir) and 78641 (10.9 mi, Leander).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.